Enumerable.SelectMany Method (System.Linq)

This page is specific to

Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:

.NET Framework Class Library

Enumerable..::.SelectMany Method

Projects each element of a sequence to an IEnumerable<(Of <(T>)>) and flattens the resulting sequences into one sequence.

Overload List

	Name	Description
	SelectMany<(Of <(TSource, TResult>)>)(IEnumerable<(Of <(TSource>)>), Func<(Of <(TSource, IEnumerable<(Of <(TResult>)>)>)>))	Projects each element of a sequence to an IEnumerable<(Of <(T>)>) and flattens the resulting sequences into one sequence.
	SelectMany<(Of <(TSource, TResult>)>)(IEnumerable<(Of <(TSource>)>), Func<(Of <(TSource, Int32, IEnumerable<(Of <(TResult>)>)>)>))	Projects each element of a sequence to an IEnumerable<(Of <(T>)>), and flattens the resulting sequences into one sequence. The index of each source element is used in the projected form of that element.
	SelectMany<(Of <(TSource, TCollection, TResult>)>)(IEnumerable<(Of <(TSource>)>), Func<(Of <(TSource, IEnumerable<(Of <(TCollection>)>)>)>), Func<(Of <(TSource, TCollection, TResult>)>))	Projects each element of a sequence to an IEnumerable<(Of <(T>)>), flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein.
	SelectMany<(Of <(TSource, TCollection, TResult>)>)(IEnumerable<(Of <(TSource>)>), Func<(Of <(TSource, Int32, IEnumerable<(Of <(TCollection>)>)>)>), Func<(Of <(TSource, TCollection, TResult>)>))	Projects each element of a sequence to an IEnumerable<(Of <(T>)>), flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein. The index of each source element is used in the intermediate projected form of that element.

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